The effects of agricultural management on selected soil properties of the arable soils in Tibet, China
文献类型：期刊论文
| 作者 | Zhang, Dan1,2,3; Zhou, Zhonghao1,2,4; Zhang, Bin1,2,3; Du, Shuhan1,2,3; Liu, Gangcai1,2
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| 刊名 | CATENA
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| 出版日期 | 2012-06-01 |
| 卷号 | 93页码:1-8 |
| 关键词 | Arable land Soil property change Agricultural management Cultivation Tibetan plateau |
| ISSN号 | 0341-8162 |
| 其他题名 | 农业管理措施对土壤性质的影响 |
| 通讯作者 | Gangcai Liu |
| 英文摘要 | Lhasa is a crucial agricultural region of the Tibetan plateau for local grain and vegetable supplies. Therefore, to sustain soil productivity, it is important to understand how agricultural management practices can cause changes in soil properties. Based on the information from the soil survey conducted in the late 1980's, we selected and sampled the following sites in the summer of 2007: 17 sites of the tillage,(A) layer soils and 13 sites of soil profiles, including the tillage and subsoil layers from three types of arable land soils in Lhasa (alluvial soil steppe soil, and meadow soil). At the same time, another 55 composite samples and core samples were taken from the grain-crop land, open vegetable land and greenhouse vegetable land of the alluvial soil. The selected soil properties were measured and compared to the soil survey data from the 1980s. The results showed that because of wind erosion and irrigation, the arable soils in the investigated area have become significantly more sandy (P<0.05) since the late 1980s. Moreover, because of fertiliser application and acid precipitation, the soil pH and cation exchange capacity of the study soils are significantly lower (P<0.05) than in the late 1980s, thus leading to soil acidification and lower soil fertility. Soil organic matter and the total nitrogen contents in the cultivated steppe soils and meadow soils increased, possibly because of manure addition and fertiliser use in the region. The soil organic matter and the total nitrogen content decreased in the alluvial soils, possibly due to an intensified cultivation; however, the available nitrogen and phosphorus increased significantly (P<0.01), whereas potassium decreased significantly (P<0.05). These changes were mainly attributed to the heavy use of nitrogen and phosphorus fertilisers and the infrequent use of potassium fertiliser. The changes in the A layer (tillage layer) were more apparent than in the other layers. This finding was especially evident in the vegetable land, where the changes are attributed to the agricultural management activities that often occur in this layer. The soil organic matter in the B layer increased significantly (P<0.05) due to the accumulation of plant roots and the deposition of organic matter from tie A horizon. For the same soil under different land use, the rank of the soil fertility was cropland < open vegetable land |
| WOS标题词 | Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine |
| 类目[WOS] | Geosciences, Multidisciplinary ; Soil Science ; Water Resources |
| 研究领域[WOS] | Geology ; Agriculture ; Water Resources |
| 关键词[WOS] | LONG-TERM CHANGES ; ORGANIC-MATTER ; PHYSICAL-PROPERTIES ; FOREST SOILS ; CHEMICAL-PROPERTIES ; CROPPING SYSTEMS ; TEMPORAL-CHANGES ; GREAT-PLAINS ; LOESS SOIL ; LAND-USE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000302890300001 |
| 公开日期 | 2012-12-11 |
| 源URL | [http://192.168.143.20:8080/handle/131551/4416]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazard & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China 2.Minist Water Resources, Chengdu 610041, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 4.Chongqing Bur Geol & Minerals Explorat, Chongqing 402160, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Dan,Zhou, Zhonghao,Zhang, Bin,et al. The effects of agricultural management on selected soil properties of the arable soils in Tibet, China[J]. CATENA,2012,93:1-8. |
| APA | Zhang, Dan,Zhou, Zhonghao,Zhang, Bin,Du, Shuhan,&Liu, Gangcai.(2012).The effects of agricultural management on selected soil properties of the arable soils in Tibet, China.CATENA,93,1-8. |
| MLA | Zhang, Dan,et al."The effects of agricultural management on selected soil properties of the arable soils in Tibet, China".CATENA 93(2012):1-8. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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